In: Statistics and Probability
Belief in UFOs A survey found that 20% of people believe that they have seen a UFO. Choose a sample of
11 people at random. Find the probability of the following. Round intermediate calculations and final answers to at least three decimal places.
a) At least 2 people believe that they have seen a UFO
b) 2 or 3 people believe they have seen an UFO
c) Exactly 3 people have seen an UFO